Can you hold tight tolerance on 303?

Yes. We consistently achieve +/-0.003mm on critical dimensions.

What thread types can you machine?

NPT, NPTF, BSPP, BSPT, UN/UNF/UNC, Metric, STC, LC, TBG, BC, IJ, EUE, NUE, STUB ACME, and custom threads.

Send drawings (PDF/STEP/IGS/DWG) with: material (303), tolerance, thread type (if any), surface finish requirement, and quantity. No drawing? Send a sample, photo, or sketch - free engineering support.

What is your lead time?

Sample (1-10 pcs): 10-15 days. Batch: 2-3 weeks. Rush service available.

Do you offer samples?

Yes. Sample fee is fully refundable upon mass production order. Sample includes full inspection report.

What after-sales support do you offer?

30 days to report any issue; solution within 7 days. Click 'Contact Supplier'.

Precision CNC Components for Exploration Tools with Stainless 303

Name: Precision CNC Components for Exploration Tools with Stainless 303
Brand: Dongguan Guanneng Automation Technology Development Co., Ltd.
SKU: 2307536085

Guangdong, ChinaDongguan Guanneng Automation Technology Development Co., Ltd.

US$5.00

100-999 Pieces

US$3.00

1,000-9,999 Pieces

US$0.90

10,000+ Pieces

Product profile

Customization

Available

Keywords 01

Alloy 4140 Pipeline Valves

Keywords 02

Tight Tolerance CNC Machining

Keywords 03

High Strength Valve Components

Keywords 04

Custom 4140 Valve Bodies

Keywords 05

Nace Mr0175 4140 Parts

Keywords 06

Quenched and Tempered Steel Machining

Keywords 07

Precision Turned Valve Stems

Keywords 08

NPT Threaded 4140 Fittings

Keywords 09

a-P-I 6A Valve Components

Keywords 10

Heat Treated Alloy Steel Parts

Transport Package

Individual Packing + Wooden Case

Specification

OD68*L700mm

Trademark

GGN

Origin

China

HS Code

8466939000

Production Capacity

1000PCS

Key features

Superior Machinability: Stainless 303 offers 78% machinability rating, ideal for complex geometries and high-speed production.

Ultra-Tight Tolerance: Achieves +/-0.003mm on critical features with 100% CMM inspection for precision exploration tools.

Comprehensive Material Range: Supports Stainless 303, 316, Aluminum, Titanium, Copper, and exotic alloys like Hastelloy.

ISO9001 Certified Quality: ISO9001:2015 certified manufacturer with strict QC, EN 10204 3.1 material traceability, and 100% inspection.

Fast Lead Time: Samples delivered in 10-15 days; batch orders completed in 2-3 weeks with rush service available.

Extensive Thread Capabilities: Machines NPT, BSPP, Metric, and custom threads with precision sealing faces and verification gauges.

Advanced Surface Treatments: Offers passivation, electropolishing, anodizing, plating, and polishing to Ra 0.4um or better.

Flexible Customization: Full customization from samples or designs with free DFM feedback and engineering support.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceFast Delivery

Dongguan Guanneng Automation Technology Development Co., Ltd.

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 5 years CertifiedNearest Port: Shenzhen PortAverage Response Time: ≤0.66h

AI-Powered supplier vetting

SummaryDongguan Guanneng Automation Technology Development Co., Ltd. is a China-based combined business entity identified in one record as a trade company, operating in Dongguan, Guangdong. It reports more than 15 years of machining-industry experience, while the company establishment date provided is 2018. Its stated capabilities include CNC machining, milling, grinding, wire cutting, turning, testing, assembly, and after-sales service. The supplier reports its own factory, multiple production lines, more than 10 production lines, and ISO9001:2015 certification. It serves machining, biomedical, automotive, semiconductor, automation, and petroleum machinery industries, and exports to East Asia, Europe, and North America. Lead times are stated as within 15 working days in both off-peak and peak seasons. Evidence is insufficient to assess financial credibility, innovation output, formal outsourcing or contract controls, overseas warehousing, traceability, or named customer cases. The audit record is dated November...

CertificationsThe supplier reports holding an ISO9001:2015 certificate and describes a dedicated quality control department and strict ISO9001-based production management system. A BV audit is also recorded for November 9, 2023 through November 8, 2024, although the audit result is listed as 0 without an explained scale.

After-Sales capabilityThe company description explicitly includes after-sales service among its integrated activities and states that it serves domestic and overseas enterprises. However, the records provide no specific response process, service coverage, repair policy, or overseas service infrastructure; overseas warehouse and showroom capabilities are marked unknown.

Production capacityThe supplier reports more than 15 years of machining-industry experience, its own factory, multiple production lines, and more than 10 production lines. It lists CNC machining, milling, grinding, wire cutting, and turning capabilities, serves several industrial sectors, and states lead times within 15 working days in both peak and off-peak seasons.

Customization capabilityThe product and service descriptions cover precision CNC machining, CNC turning, grinding, wire cutting, machinery parts, testing, and assembly. The supplier states that its production lines can meet different product needs and requirements, supporting customization, although no detailed engineering workflow, tolerance range, tooling policy, or sample-development evidence is provided.

Product Q&A

Q:Are you a manufacturer or trading company?

We are a direct manufacturer - 2,000 sqm, 17 years of experience, 30+ CNC machines, ISO9001, 3D CMM. Send inquiry for a live video tour.

Q:What is Stainless 303?

Stainless 303 (UNS S30300) is a free-machining austenitic stainless steel with sulfur added to enhance machinability. It is the most readily machinable of all austenitic stainless steels.

Q:Why is 303 preferred for exploration tool components?

303 offers excellent machinability for complex geometries, outstanding dimensional stability, non-galling properties, and non-magnetic characteristics - all essential for precision exploration tools.

Q:What is the machinability rating of 303?

Approximately 78% of free-cutting carbon steel (B1212), allowing for higher cutting speeds and longer tool life than 304 or 316.

Q:Is 303 suitable for welding?

303 has poor weldability. For applications requiring welding, consider 304 or 304L.